1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71465e1769ded3eaefefe8ac7358511d138681d6b6adaf7b1e91cba6c194b65. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8493867-190c-43fe-b7f6-2ec2ed83df25.json and https://artists.proofprofile.net/proofs/artist/e8493867-190c-43fe-b7f6-2ec2ed83df25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Porgy And Bess/Why You Been Out on That Wharf So Long, Clara?
Porgy And Bess/It Takes a Long Pull to Get There
Porgy And Bess/Introduction and Jasbo Brown Blues
Porgy And Bess/Oh, Doctor Jesus (Hurricane Scene); Summertime (Reprise)
Porgy And Bess/Mus' Be You Mens Forgot About de Picnic
Porgy And Bess/What Make You So Still, Bess; Oh, Dere's Somebody Knockin'
Porgy And Bess/Oh, Nobody Knows When de Lord Is Gonna Call
Porgy And Bess/A Woman Is a Sometime Thing
Porgy And Bess/Lissen There, What I Tells You
Porgy And Bess/You Is a Nice Parcel of Christians
Porgy And Bess/I Hates Yo' Struttin' Style
Porgy And Bess/Here Come de Honey Man; Porgy's Entrance
Porgy And Bess/Here Comes Big Boy! (Entrance of Crown and Bess)
Porgy And Bess/Oh Little Stars, Little Stars
Porgy And Bess/Lo, Bess, Goin' to the Picnic?
Porgy And Bess/Summertime (Reprise); Death of Crown
Porgy And Bess/Wait For Us at the Corner, Al
Porgy And Bess/Well, Well, Well, a Saucer-Burying-Setup
Porgy And Bess/Oh, Gawd! They Goin' Make Him Look on Crown's Face!
Porgy And Bess/What's de Matter Wid You, Sister?
Porgy And Bess/There's a Boat Dat's Leavin' Soon for New York
Porgy And Bess/How de Saucer Stan' Now, My Sister?
Porgy And Bess/Leavin' for the Promise' Lan'
Porgy And Bess/Good Mornin', sistuh! Good Mornin', brudder!
Porgy And Bess/Dance; Shame on All You Sinners
Porgy And Bess/Oh, Bess, Oh, Where's My Bess
Porgy And Bess/Honey, dat's All de Breakfast I Got Time for
Porgy And Bess/Take Yo' Hands off Me, I Say
Porgy And Bess/Strawberry Woman; Honey Man; Crab Man
Samson et Dalila, Op. 47: Mon cœur s'ouvre à ta voix - Live
Orchestra of the Municipal Theatre of Rio de Janeiro
Samson et Dalila, Op. 47: Mon c?ur s'ouvre à ta voix
Rio de Janeiro Municipal Theatre Orchestra
Mon coeur s'ouvre à ta voix from Samson et Dalila - Voice
Porgy And Bess: Introduction and Jasbo Brown Blues
Porgy And Bess: Oh, Nobody Knows When de Lord Is Gonna Call
Porgy And Bess: A Woman Is a Sometime Thing
Porgy And Bess: Here Come de Honey Man; Porgy's Entrance
Porgy And Bess: Here Comes Big Boy! (Entrance of Crown and Bess)
Porgy And Bess: Oh Little Stars, Little Stars
Porgy And Bess: Well, Well, Well, a Saucer-Burying-Setup